An issue was discovered in Joomla! 3.0.0 through 3.9.27. Inadequate escaping in the rules field of the JForm API leads to a XSS vulnerability.
https://developer.joomla.org/security-centre/856-20210701-core-xss-in-jform-rules-field.html
Source: Mitre, NVD
Published: 2021-07-07
Updated: 2021-07-07
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N
Severity: Medium
Base Score: 6.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N